What are some ideas for a middle school science project?

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Some ideas for middle school science projects include finding out what plants grow in which soil pH level and discovering the electrical conductivity of certain soil types, says Live Science. Other science projects include discovering natural water filters and the most effective plastic wrap to prevent evaporation, according to About.com.

A student can find out the best soil pH for certain plants by gathering soil samples in different areas and testing it, explains Live Science. The student chooses different areas for soil testing such as a garden, a field, a lawn and underneath pine trees. Upon choosing the areas, soil is collected from a hole and placed in labeled plastic zip bags. The label needs to contain the location of the soil and the type of plants found in the area. The student allows the soil samples to dry out before the pH test by buying a soil test or using a vinegar and baking soda solution.

Another project is to decide whether potting soil with fertilizer, sand, clay or potting soil has the highest conductivity, states Live Science. Each of these soil types is gathered and dried out, then placed in separate beakers. The student adds distilled water to each soil sample and allows it to soak for 30 minutes before attaching the jumper cables. After attaching the jumper cables, read the milliamp gauge on the ammeter for the necessary conductivity information.